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矢量逼近
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  “矢量逼近”译为未确定词的双语例句
     A sort of vector approximation searching boundary point method of tissue segmentation is present by analyzing 3D mesh segmentation, and single tooth is divided by citing solid incision method in Rapid Protoyping technique.
     在分析三维网格分割方法的基础上,提出了一种矢量逼近寻找边界点的组织分割方法,并利用快速成型技术中的实体切割方法对单个牙齿进行了分离。
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  相似匹配句对
     The Best Approximation in Topological Vector Spaces
     拓扑矢量空间中的最佳逼近
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     Piecewise Circular Arcs Optimum Approxim \ ation of the Chinese Vector Characters
     分段圆弧优化逼近矢量汉字
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     system and vector B(?)
     系统和矢量B(?)
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     Convergence of Attractors
     吸引子的逼近
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     Optimal Approximation of Quadratic Root
     平方根的最佳逼近
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The kinematics measures of manipulation robots, including singularity, manipu-lability, condition number and unreachability are investigated. The meanings and properties of all these concepts are discussed on the basis of the theory of numerical correlativity. Several conclusions about the conditions for the occurrence of singularity and perturbation during space transformation of the robot are obtained. The formulae for estimating the manipulability and condition number of different types of robots are presented....

The kinematics measures of manipulation robots, including singularity, manipu-lability, condition number and unreachability are investigated. The meanings and properties of all these concepts are discussed on the basis of the theory of numerical correlativity. Several conclusions about the conditions for the occurrence of singularity and perturbation during space transformation of the robot are obtained. The formulae for estimating the manipulability and condition number of different types of robots are presented. The best postures of orthogonal manipulator SCARA, PUMA type robot and STADNFORD arm from the point of view of the optimal condition number are given.

本文从线性模空间矢量逼近的角度讨论了操作机器人作用空间与广义坐标空间的转换问题。基于数值相关性理论论述了操作机器人的几种运动学测度,包括奇异性、操作度、条件数和不可达度。本文讨论了这几种运动学测度之间的关系,几何意义和计算,针对各种类型的机器人得出了一些有用的结论。文中还讨论了直角坐标机器人、SCARA、PUMA、STANDFORD等型号机器人的条件数估算及其最佳位姿。

The principle of voltage vector locus pulse width modulation control was put forward.Firstly analyzed PWM control principle of voltage vector locus in theory, formed mathematicalmodules and proposed a method to ideal flux circle with voltage vector, then gave the approximativepath of any segmentation mode to obtain the switching state table of a inverter and analyzederror and harmony on such basis. Finally designed the optimal hardware and software to realizevoltage vector locus pulse width modulation control...

The principle of voltage vector locus pulse width modulation control was put forward.Firstly analyzed PWM control principle of voltage vector locus in theory, formed mathematicalmodules and proposed a method to ideal flux circle with voltage vector, then gave the approximativepath of any segmentation mode to obtain the switching state table of a inverter and analyzederror and harmony on such basis. Finally designed the optimal hardware and software to realizevoltage vector locus pulse width modulation control and formed PWM signal in order to drivesome certain operation of a inverter and IGBT.

首先从理论上阐述电压矢量轨迹PWM控制原理,建立了数学模型,提出了用电压矢量逼近理想磁链圆的方法,给出了任一分割方式的逼近路径,得到逆变器开关状态表,最后设计该控制的最佳硬件和软件,以实现对逆变器的控制.

The problem of improving flexibility of redundant robot is studied. A method for improving flexibility of redundant robot in which two vectors approach each other is proposed. Based on mean theorem, the method combines Jacobian's eigenvalue with its eigenvector to form a null space vector of redundant robot. The flexibility of robot is improved by the self-motion of robot. Finally, a simulation example for a planar 3R redundant robot is presented to compare convergence and stability with those of other method....

The problem of improving flexibility of redundant robot is studied. A method for improving flexibility of redundant robot in which two vectors approach each other is proposed. Based on mean theorem, the method combines Jacobian's eigenvalue with its eigenvector to form a null space vector of redundant robot. The flexibility of robot is improved by the self-motion of robot. Finally, a simulation example for a planar 3R redundant robot is presented to compare convergence and stability with those of other method.

通过研究冗余度机器人系统的灵活性问题,给出一种矢量逼近的控制算法.该算法根据均值定理,利用雅可比矩阵的特征值及所对应的特征向量,构成冗余度机器人的零空间矢量;通过机器人的自运动,提高了冗余度机器人的灵活性.最后,给出一个平面3R机器人的仿真实例,在收敛速度方面和稳定性方面与其他方法进行了对比.

 
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